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How to prevent Matlab from rounding small numbers to zero?

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Ali Kareem
Ali Kareem on 14 Oct 2016
Commented: Walter Roberson on 2 Mar 2021
Hi,
I am trying to find cross-correlation without using function
xcorr
The code works for large numbers. However, for small numbers the code fail. It's round small numbers to zero. I tried to use
format longE
But it is not working. Any help will be very appreciated.
Thanks
  2 Comments
Walter Roberson
Walter Roberson on 14 Oct 2016
When you refer to "The code", are you referring to Mathwork's xcorr or to code that you yourself have written?

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Answers (1)

Pritesh Shah
Pritesh Shah on 14 Oct 2016
Check the code once again. You can see code of xcorr function using edit xcorr
  2 Comments
Walter Roberson
Walter Roberson on 2 Mar 2021
When people are for some reason not permitted to use a particular function, then they can still often get an understanding of how the function works by using "edit" with the function name.

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